Scott Skylane wrote:
Ron Natalie wrote:

I know of only one Navion with a squat switch, the plane wasn't
designed with one.


That's interesting, Ron. Do you know what, exactly, the switch did(i.e
operate a solenoid that blocked the gear handle, or somesuch)?

Exactly, there's actually a secondary gear lock (this was either an SB
or AD, probably an AD I've never seen a Navion that doesn't have it).
Normally the only thing that keeps you from raising the gear is that you
have to pull out the handle over a detent. The seconary lock is a
small lever that hooks over the handle (behind the panel). I believe
Don added a solenoid that makes it impossible to release the secondary
lock on the ground.

Frankly, the inadvertant retracts that I know about have all been after
maintenance.